By Watkins K. B.   Anders Merle M.   Windham Tony E.   in Journal of Sustainable Agriculture

ISSN:1044-0046|24|4|57-78

Haworth Press‎(2004)‎

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By Anders Merle M.   Windham Tony E.   McNew Ronald W.   Reinecke Kenneth J.   in Journal of Sustainable Agriculture

ISSN:1044-0046|26|1|83-96

Haworth Press‎(2005)‎

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